Here's a few suggestions to kick the map up a bit.

  • Reduce the transparency on the white circles behind the numbers so that they are not entirely blocking the detail of the map, but still offer some contrast for the numbers.

    I'm guessing the ruins of the buildings were not built from cement. You may want to "break up" the foundations some more to give it a more natural appearance.

    Add some shadow to the house on the hill as well as the tents, ship, docks, and even the Kanks, to give some indication of height.

    Shadow could also be added to the hills to give them an appearance of height and also their height in relation to the village.